Here's what I've got. I'm working on a 1986 Nissan Maxima in 100% stock condition, 235,000 miles. In Texas we use 15/50; 25/25 ASM emissions testing. My test results are as follows:

15 mph, CO=.51%, HC=146ppm, CO2=12.8%, O2=.85%, NOx=3023ppm 25 mph, CO=.53%,... Login to read more.